You know that when most guys go around parties bragging about their dicks, it usually means they're massively overcompensating, and the more they brag, the more pathetic they really are. And you know that's what most girls think, too. That's how you get her to agree to the bet. The night starts off like any other party, and you immediately see a girl who's exactly what you're looking for: hot, confident, bratty, and clearly has a boyfriend. The kind of girl who's so confident in herself that when you start going up to her and talking a huge game over how great your dick game is, she wastes no time in telling you what a red flag that is, and how that clearly means you've never ACTUALLY known how to make a girl cum. But you don't relent. You press on and on, both of you getting more confident in your positions as you do. And that's when you know you have her. So you suggest to her an innocent little bet: why don't you just find an unoccupied room and fuck? If she's THAT confident that you're overcompensating, then she must think you wouldn't even be able to get it up! Obviously, at first she's shocked you would even say something like that. But with how much you've been arguing about it, something in her is adamant to defend herself, to prove that you're just another guy who doesn't even have a dick capable of pleasing a woman. So, somehow, you two find yourself heading back to her and her boyfriend's apartment. Which is exactly what you had planned. Because unlike those other guys who go around bragging about their dicks... yours is almost always bigger than what any girl has seen, or felt, before. You know you have a pornstar cock, and once you show her that you weren't just hyping yourself up, she seems even more motivated to go through with the bet. She's calls up her boyfriend and explains the situation. You can hear how reluctant he is to agree, but his girlfriend is completely sure about this. You watch as she convinces her boyfriend to let you fuck her, just to prove what a blowhard you are. In fact, he's going to stay in the room the whole time just to watch you lose. Unfortunately for him, you never lose. As soon as you start sliding your cock inside her, you can feel the way she's never been stretched out like this. She keeps up a brave face for her boyfriend while you start fucking her brains out, but eventually she has to give in to the pleasure and admit that she's going to lose the bet. She's NEVER felt a cock like this before, and now she's even letting her boyfriend know it! You watch as she becomes completely addicted to your dick, cumming over and over, worshipping it like she never wants to see another cock again. She may have lost the bet, but once she takes the condom off while making out with your cock, it's clear who the real loser is. Looks like she's your girlfriend now!